<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>注册页面</title>
</head>
<body>
<center>
    <h1> 该用户已经存在，请重新注册</h1><br>
    <a href="./reg.html">去注册</a>
</center>
</body>
</html>